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Semantically glink-edge and glink-rpm-edge are similar: Both describe the communication channels to a remote processor. The RPM glink-edge is a special case that needs slightly different properties but otherwise it is used exactly the same. To improve consistency use the same "glink-edge" node name also for glink-rpm-edge. Drop the $nodename from qcom,glink-edge.yaml to avoid matching the wrong schema. qcom,glink-edge.yaml is always referenced explicitly from other schemas. This will already ensure that the nodes are being checked, so it's not necessary to bind to all nodes named "glink-edge". Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230531-rpm-rproc-v3-5-a07dcdefd918@gerhold.net Signed-off-by: Bjorn Andersson <andersson@kernel.org>
100 lines
2.5 KiB
YAML
100 lines
2.5 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/remoteproc/qcom,glink-rpm-edge.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm G-Link RPM edge
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description: |
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Qualcomm G-Link edge, a FIFO based mechanism for communication with Resource
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Power Manager (RPM) on various Qualcomm platforms.
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maintainers:
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- Bjorn Andersson <andersson@kernel.org>
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properties:
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compatible:
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const: qcom,glink-rpm
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label:
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$ref: /schemas/types.yaml#/definitions/string
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description:
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Name of the edge, used for debugging and identification purposes. The
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node name will be used if this is not present.
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interrupts:
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maxItems: 1
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mboxes:
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items:
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- description: rpm_hlos mailbox in APCS
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qcom,remote-pid:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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The identifier for the remote processor as known by the rest of the
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system.
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qcom,rpm-msg-ram:
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$ref: /schemas/types.yaml#/definitions/phandle
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description: |
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RPM message memory resource (compatible: qcom,rpm-msg-ram).
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rpm-requests:
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type: object
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$ref: /schemas/soc/qcom/qcom,smd-rpm.yaml#
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unevaluatedProperties: false
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description:
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Qualcomm Resource Power Manager (RPM) over G-Link
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properties:
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qcom,intents:
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$ref: /schemas/types.yaml#/definitions/uint32-matrix
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minItems: 1
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maxItems: 32
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items:
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items:
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- description: size of each intent to preallocate
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- description: amount of intents to preallocate
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minimum: 1
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description:
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List of (size, amount) pairs describing what intents should be
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preallocated for this virtual channel. This can be used to tweak the
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default intents available for the channel to meet expectations of the
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remote.
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required:
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- qcom,glink-channels
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required:
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- compatible
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- interrupts
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- mboxes
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anyOf:
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- required:
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- qcom,remote-pid
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- required:
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- qcom,rpm-msg-ram
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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glink-edge {
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compatible = "qcom,glink-rpm";
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interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
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mboxes = <&apcs_glb 0>;
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qcom,rpm-msg-ram = <&rpm_msg_ram>;
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rpm-requests {
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compatible = "qcom,rpm-msm8996";
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qcom,glink-channels = "rpm_requests";
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/* ... */
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};
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};
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